Moussa Dembele opened the scoring three minutes after kick-off thanks to a deflection.
Fernandinho quickly equalised for City but less than 10 minutes later Raheem Sterling's own goal made it 2-1 for the Bhoys.
But eight minutes later the forward equalised against his former manager.
Dembele completed his brace on the 47th minute but Nolito made it 3-3.
United fans were impressed by the ex-Liverpool manager's tactics and sang praises of him on Twitter.
Check out their reaction in our gallery above. read more

Manchester City are reportedly battling French giants Paris Saint-Germain to sign Fabinho from Monaco.
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The one big problem in the opening months of the season has been the Frenchman's injury.
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The Portuguese enjoyed an encouraging first...

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Chelsea fans have hit out at Manchester City boss Pep Guardiola, accusing the Spaniard of tapping up’ Andreas Christensen after his side’s 1-0 win at Stamford Bridge.
Kevin De Bruyne’s second half goal gave the visitors all three points in west London...